In case you're wondering why the sprites of Mega Man in the last three panels are the same is that Mega Man's mouth doesn't quite fit on his face when his head is turned to the site, like in the first panel. So, rather than try to finagle something together, I just decided to use the same sprite, even if it does look a little silly in context.

Besides, it would be rude for him to turn away from Bass when he's talking to him.